title: Copper(II) influence on flumequine retention in soils: macroscopic and molecular investigations.
abstract: The coadsorption of flumequine (fluoroquinolone antibiotic) and copper(II) on a alkaline soil sample (collected from the Champagne-Ardenne region, France) was studied at macroscopic and molecular scales by means of batch experiments and X-ray absorption spectroscopy. The retained antibiotic amount onto the soil surface increases (from 2- to >20-fold) with the copper concentration due to the formation of a Cu(II)-flumequine ternary surface complex, which leads to the accumulation of flumequine into soils. Flumequine can be classified at environmentally relevant pH values as a slow-mobile compound in soils and a very slow-mobile compound in the presence of copper, even at relatively low concentrations.
authors.affiliation: Institut de Chimie Moléculaire de Reims (ICMR, UMR CNRS 6229), Groupe Chimie de Coordination, Université de Reims Champagne-Ardenne, BP 1039, 51687 Reims Cedex 2, France.
authors.forename: David
authors.initials: D
authors.lastname: Pérez Guaita
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Sayen
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Boudesocque
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Guillon
mesh_terms: D000327:Adsorption; D000890:Anti-Infective Agents / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D024841:Fluoroquinolones / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000737:chemistry*
chemical_list: D000890:Anti-Infective Agents; D024841:Fluoroquinolones; D009942:Organometallic Compounds; D012987:Soil; D012989:Soil Pollutants; D003300:Copper; C012976:flumequine